Alternative conducted emission measurements on mains without LISNs

Conducted emission tests are always performed by the use of LISNs in laboratories in accordance with CISPR22, CISPR11 and other similar standards. However, it is not always possible to use LISNs because of some limitations. If the EUT (Equipment Under Test) has large dimensions or high currents, it...

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Bibliographic Details
Published in:IEEE electromagnetic compatibility magazine 2015-01, Vol.4 (4), p.58-65
Main Authors: Sen, Osman, Cakır, Soydan, Cınar, Mehmet, Pous, Marc, Silva, Ferran, Cetintasş, Mustafa
Format: Article
Language:English
Subjects:
Alternative
Antenes i agrupacions d'antenes
Cables
Conducted Emission
Current measurement
Current Probe
Electromagnetic compatibility
Electromagnetic interference
EMC
Emission
Emission analysis
Enginyeria de la telecomunicació
Enginyeria electrònica
High Current
Impedance
Impedance (Electricity)
Impedance measurement
Impedància (Electricitat)
Industry
Integrated circuit modeling
Interferència electromagnètica
Laboratories
LISN
Mains Impedance
Mathematical model
Probes
Radiocomunicació i exploració electromagnètica
Test methods
Test procedures
Àrees temàtiques de la UPC
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Summary:Conducted emission tests are always performed by the use of LISNs in laboratories in accordance with CISPR22, CISPR11 and other similar standards. However, it is not always possible to use LISNs because of some limitations. If the EUT (Equipment Under Test) has large dimensions or high currents, it is not, for most of the time, possible to send it to an EMC laboratory or to use LISNs during the test. As a consequence, usage or development of alternative conducted emission test methods is inevitable in industry. In this paper, we made conducted measurements on actual EUTs in alternative environments whose impedances are different from the standard LISN impedance and continued to establish the fundamentals of alternative conducted emission tests based on the impedance measurements of the EUT, supply and used cables. We also established the correlation, on the basis of impedance measurements, between these alternative conducted emission test method and the reference conducted emission test method.
ISSN:2162-2264
2162-2272
DOI:10.1109/MEMC.2015.7407180